HYBRID POWERTRAIN SPEED CONTROL
    4.
    发明申请
    HYBRID POWERTRAIN SPEED CONTROL 审中-公开
    混合动力传动系速度控制

    公开(公告)号:US20160107633A1

    公开(公告)日:2016-04-21

    申请号:US14518270

    申请日:2014-10-20

    Abstract: In at least one embodiment, a vehicle powertrain includes an engine and an electric machine mechanically coupled by a clutch. The powertrain also includes a torque converter configured to fluidly couple the electric machine to an output shaft. A controller is programmed to command a rotational speed output of the electric machine to the torque converter based on a predicted torque delivered across the clutch. The controller is further programmed to modify the command based on a difference between the commanded rotational speed output and an actual rotational speed output of the electric machine.

    Abstract translation: 在至少一个实施例中,车辆动力系包括发动机和通过离合器机械连接的电机。 动力传动系还包括一个液力变矩器,其配置成将电机流体地耦合到输出轴上。 控制器被编程为基于跨过离合器传递的预测扭矩来将电机的转速输出命令到变矩器。 控制器还被编程为基于指令的转速输出与电机的实际转速输出之间的差异来修改命令。

    HYBRID VEHICLE ENGINE START AND SHIFT CONTROL STRATEGY

    公开(公告)号:US20200377075A1

    公开(公告)日:2020-12-03

    申请号:US16426162

    申请日:2019-05-30

    Abstract: A system and method is disclosed for engine starting and transmission shifting where a controller may be operable to decrease a torque of a motor and operate a starter-generator (ISG) to start an engine responsive to a command to shift the transmission and start the engine. The controller may disengage a second clutch and subsequently shift the transmission to a target gear ratio speed responsive to the torque of the motor achieving zero. The controller may increase respective torques of the motor, ISG, and engine to drive a speed of the motor, ISG, and engine toward a target speed defined by the target gear speed responsive to completion of the shift. The controller may engage the second clutch responsive to the speed of the motor achieving the target speed and engage a disconnect clutch responsive to the respective speeds of the ISG and engine achieving the target speed.

    COMPENSATION OF HIGH VOLTAGE LOADS DURING PEDAL LIFT OPERATION

    公开(公告)号:US20200298708A1

    公开(公告)日:2020-09-24

    申请号:US16362381

    申请日:2019-03-22

    Abstract: A hybrid electric vehicle or a battery electric vehicle has an electric machine, a traction battery, and an accessory powered by the traction battery. The vehicle includes a controller that, in response to a driver lifting their foot off the accelerator pedal, increases the negative motor torque produced by the electric machine for charging the traction battery to compensate for a load applied by the accessory. The controller increases negative motor torque as limited by a maximum motor torque limit. The accessory may be an electric air conditioning compressor and/or a DC/DC inverter.

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